Piston-valve-controlling means



.6. L. KLUEFER.

PISTON VALVE CONTROLLING MEANS.

APPLICATION man MAR.14. 192|.

Patented 0st. ML 1922.,

be held in this closed position until the piston rod 25, starts "tdmove 'in the Opposite direction and at which time the lugs or projections 28, will assume positions, during such movement of the piston rod, as to allow the-valve 16 to be unseated, preferably by centrifugal torce, this force exerted upon the valve will tend to unseat the valve and during this iiiiseating` movement the element 19 will be moved in the opposite direction so as to permit of a ready unseating ot the valve.

@bvioiisly the lugs 2S, may be so disposed that the valve may be seated at any predetermined interval during the operation ot the engine. y

lt is thoughtthat the operation of this device will be clearly understoodatrom the foregoing, but briefly stated 'it is as 'tellovvs: p

'Assuming that the motor in 4which this piston and valve is placed isot a vfour cycle type andassuming` Jfurther that the piston lh, Lismoving in a direction so vas to take in a chargent1 fuel into the engine cylinder ahead of the piston, the valve i6 will be iinseated as shown in Figure l and the parts will be in the position shown in the `full lines and the piston will be substantially at theliniit of its inward movement. Vith the chargein the cylinder, and upon the first movement of the piston towards the explosion end the valve will be closed and will cause a pressure to be .exerted upon the charge and as the piston moves. towards the explosion end to exert this pressure the piston trodv 25, will move from the position shown in full lines in Figurey l, .to the position shown in dotted lines. This will draw the valve 16 against the seat l2 and, as ,the charge'is exploded, the pressure exerted upon the valve 16, will" hold the same to its seat, even Athough the piston rod 25A moves in a direction so as to cause the projection 2S, ,to

end-ofthe cylinder,lthe burnt gases will be discharged in the lordinary manner. lUpon the return of the piston the valve ,V16 will be released by the movement ,of the piston rod 25, and projection 28, sok that the suction 'in' the cylinder together with'the centrifugal force will unseat the valveand a charge .of fuel will be drawn into the ex-I plosionend of 'the lcylinder and the valve willloev seated by the movement of the projection`j28 across the surface 2O to shift the element 17,9, Upon the next linward movenient of the piston, although `the valve will. be released, ip will not be iinseated because itwill beheldto its seat by the pressure :of the gases behind the valve.

:With' ,this improved construction yit'will be' manifest that there is provided a means for positively seating the valve and for holding the saine to its seat at predetermined inv als in the operation of the piston.

it liile the preferred Atorni oi? the invention has been herein shown and described.A it is to be und rstood that various changes may he made in the details ot construction and in the combination and airzingenient ol' the severedL parts, within the scope ot the claims, without departing from the spirit oi" this invention.

1What is claimed as new is: t

l. A piston, a valve therein, :i piston rod pivotally connected with the piston, a, reciprocating element .detached troni the piston and connected with the valve, and ineens connected with the piston rod and adapted to engage and move the said element in one direction during a predetermined portion of the movement oit the piston rod with respect to the piston, to close the said valve.

2. piston, a valve tlieiein, a piston rod pivotally connected with the piston, a reciprocating clement connected with the valve. and means connected with the piston rod and adapted to engage and move the said element in one direction during :i predetermined portion of the movement ot' the piston Arod with respect to the piston, to close the said valve, the said element heilig detached from the piston and housed therein. said element being guided in its movement by the Wall of the piston.

3. A hollow piston, a valve therein, :i piston rod pivotally connected with the piston. a guide for the valve, a reeiprocable element Within the piston and connected with the valve, said element being detached romthc piston, portions of' said element engaging the wall of the piston tov be guided thereby, and a shoulder on the piston rod engaging and moving across a portion of the said element for moving the element in one direction to l close the valve. move across the surface 20, in a direction` 4. A hollow piston, a valve therein, ii` piston rod pivotally connected with the piston, a guide for the valve, a reciproca'ble element within the piston and connected with the valve` said element being detached from the piston, portions` of; said element engaging the wall of the piston to be guided thereby, and a shoulder on the piston rod engaging and moving across a portion of the said clement for moving the element in one direction to close the` valve and vmaintain the same closed during a predetermined interval in the operation of the piston.

5. A hollow piston, a valve therein, a piston rod pivotally connected with the piston, aguide for'tlie valve, a reciproeable element detached from and housed within the piston and detachably connected with the valve, portions of the element engaging the wall of the piston andV being guided thereby, and a projection on the piston rod,

valve,

mantas jjj the said element having an extendedsurface arranged within the path of movement of the said projection, said projection engaging and moving across the said surface to shift the element in one direction to close the valve.

\ 6. A hollow piston, a valve therein, a`

piston rod pivotally connected with the piston, a guide for the valve, a reciprocable element detached from and housed within the piston and detachably connected with the portions of the element engaging the Wall of the piston and being guided thereby, and a projection on the piston rod, the said element having an extended surface ar-l ranged Withn the path of movement of the projection engaging and moving across the said surface to shift the element in one direction to close the valve, the said valve being unseated by centrifugal force and operating to` shift the `said element in the opposite direction when the said projection moves 1n another direc-` tion across said surface. j

7. A. hollow piston, a valve therein, a piston rod pivotally connected with the piston, a guide for the valve, a reciprocable `element housed within the piston and connected with the valve, said element being formed `oir' sheet material `and shaped to form an arm detachably connected with the valve and spaced guiding portions movable against the piston wall, said element having a surface extending in a direction across the piston, and a projection on the piston rod engaging and moving across said surface to shift the said element in one direction to close the valve.

8. A hollow piston, a valve therein, a piston rod pivotally connected with the piston, a guide` for the valve, a reciprocable element housed within the piston and connected with the valve, formed of sheet material and shaped to form an arm detachably connected with the valve and spaced guiding portions movable against i the piston wall, said element having a surface extending in a direction across the piston, and a projection on the piston rod engaging and moving across said surface to shift the said element in one direction to close the valve, the piston wall and the said guiding portions of the said element also serving to maintain'the said element and valve against detachment. 9. A hollow piston, a valve therein, a piston rod pivotally connected with the` piston, a guide for the valve, a reciprocable element housed within the piston and connected with the valve, said element being formed of sheetmaterial and shaped to form an arm detachably connected with the valve and spaced guiding portions movable against the piston wall, said element having a surface extending in a direction` across the piston, and a projection on the piston rod engaging and moving across said surface to shift the said element in one direction to close the valve, portions of the said element being disposed on opposite sides of the piston rod.

ln testimony whereof I have signed my name to this'specication on this 9th day of March, A. D. 1921. l

GUY L. KLUEFER.

saidelement being 

